package cc.comac.mom.util;


import org.springframework.beans.BeansException;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;

/**
    * @ClassName: SpringContextUtils
    * @Description: 在线程中获取spring bean
    * @author Administrator
    * @date 2018年8月29日
    *
    */

public class SpringContextUtils  implements ApplicationContextAware{
	private static ApplicationContext applicationContext;

    @Override
    public void setApplicationContext(ApplicationContext applicationContext) throws BeansException {
        if(SpringContextUtils.applicationContext == null) {
        	SpringContextUtils.applicationContext = applicationContext;
        }
    }

    //获取applicationContext
    public static ApplicationContext getApplicationContext() {
        return applicationContext;
    }

    //通过name获取 Bean.
    public static Object getBean(String name){
    	
        return getApplicationContext().getBean(name);
    }
    
    public static boolean containsBean(String name){
    	return getApplicationContext().containsBean(name);
    }

    //通过class获取Bean.
    public static <T> T getBean(Class<T> clazz){
        return getApplicationContext().getBean(clazz);
    }

    //通过name,以及Clazz返回指定的Bean
    public static <T> T getBean(String name,Class<T> clazz){
        return getApplicationContext().getBean(name, clazz);
    }
}
